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-rw-r--r--net/sched/sch_prio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 1641db3..3395ca7 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -165,7 +165,7 @@ static unsigned int prio_drop(struct Qdisc* sch)
for (prio = q->bands-1; prio >= 0; prio--) {
qdisc = q->queues[prio];
- if ((len = qdisc->ops->drop(qdisc)) != 0) {
+ if (qdisc->ops->drop && (len = qdisc->ops->drop(qdisc)) != 0) {
sch->q.qlen--;
return len;
}
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